OnItemClickListener没有在GridView中的Button上调用

时间:2017-07-09 17:28:34

标签: java android gridview android-arrayadapter

我正在尝试创建一个包含一些按钮的GridView。按钮正在填充,但是当单击GridView中的Button时,不会调用OnItemClickListener()。

激活类代码

gridView = (GridView) findViewById(R.id.gridview);
    gridView.setAdapter(new ButtonAdapter(getApplicationContext(),answer));
    gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        public void onItemClick(AdapterView<?> parent, View v,
                                int position, long id) {
            flipper.showNext();

        }
    });

自定义按钮适配器

public class ButtonAdapter extends BaseAdapter{

private Context context;
private int[] numbers = new int[100];
private String[] answer;

public ButtonAdapter (Context context,String[] answer){
    this.context = context;
    this.answer = answer;
    for(int i=0;i<100;i++){
        numbers[i] = i+1;
    }
}

@Override
public int getCount() {
    return numbers.length;
}

@Override
public Object getItem(int i) {
    return null;
}

@Override
public long getItemId(int i) {
    return 0;
}

@Override
public View getView(int i, View view, ViewGroup viewGroup) {

    View gridView;
    LayoutInflater inflater = (LayoutInflater) context
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    if(view == null) {
        gridView = new View(context);
        gridView = inflater.inflate(R.layout.adapter, null);

    } else {
        gridView = (View) view;
    }

    Button button = (Button) gridView.findViewById(R.id.adapter_button);
    button.setText(numbers[i]+"");

    if(answer[i].equals("null"))
        button.setBackgroundColor(context.getResources().getColor(R.color.reset));
    else
        button.setBackgroundColor(context.getResources().getColor(R.color.optionCheck));

    return gridView;
}
}

adapter.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">

    <Button
        android:id="@+id/adapter_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button" />
</LinearLayout>

acitvity_layout.xml

<GridView
        android:id="@+id/gridview"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:gravity="center"
        android:numColumns="5"
        android:columnWidth="50dp"
        android:stretchMode="columnWidth"
        android:layout_below="@+id/back"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

1 个答案:

答案 0 :(得分:0)

您需要实现一个接口,并让您的Activity通过接口侦听器订阅特定按钮。您的ButtonAdapter应该实现onClickListener,但您的Activity应该使用您的自定义方法实现该接口。活动和适配器是两个不同的世界,有两个不同的范围。慢慢浏览这篇文章并遵循其逻辑。它应该让你朝着正确的方向:How to create interface between Fragment and adapter?

适配器与Fragment一起使用的方式与Activity相同。